This document provides image size specifications and tips for various types of images that can be used in Facebook apps and promotions, including:
- Fan blocker, flyer, form, end of promotion, participant, and tab images of specified minimum and maximum sizes
- Additional images like headers, feeds, app logos and icons of set sizes
- Optional images for specific app types like coupons, voting options, trivia questions and answers
It emphasizes using images strategically to encourage fans, drive participation, announce winners, and promote the app or future campaigns. Tips suggest using maximum sizes for exclusivity and call-to-actions.